** Nordic Nickel NNL.AX shares rise as much as 26.3% to
A$0.120, their highest since May 21
** Stock posts its biggest intraday percentage gain since
July 2
** Nickel explorer posts positive metallurgical testing
results from its Pulju nickel-copper-cobalt project in Finland
** Says results show premium nickel concentrate can be
produced at project
** About 271,000 shares change hands, compared with the
30-day average volume of around 25,000
** Including session's move, stock trims YTD losses to 17.2%
(Reporting by Aaditya Govind Rao in Bengaluru)
((Aaditya.govindrao@thomsonreuters.com;))